120140405400 has 192 divisors, whose sum is σ = 385766157600. Its totient is φ = 30893506560.

The previous prime is 120140405377. The next prime is 120140405443. The reversal of 120140405400 is 4504041021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15255864 + ... + 15263736.

Almost surely, 2^120140405400 is an apocalyptic number.

120140405400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120140405400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192883078800).

120140405400 is an abundant number, since it is smaller than the sum of its proper divisors (265625752200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120140405400 is a wasteful number, since it uses less digits than its factorization.

120140405400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798 (or 8789 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 120140405400 its reverse (4504041021), we get a palindrome (124644446421).

The spelling of 120140405400 in words is "one hundred twenty billion, one hundred forty million, four hundred five thousand, four hundred".